Unbelievable...they're twice as big. I have to get started on the coop tomorrow. I'm going to build an 8x8 lean to. 5 to 8 nesting boxes inside with outside access...i was going to do the ones that stick out about a foot but it looks like too much wasted space. a people door, window, pop door and removable wall for easy cleaning and perches. What am I forgetting?